<div class="header clearfix">
    <h1 class="tit fl"><a target="_blank" href="<?php echo SITEDIR ?>"><?php echo SITETITLE ?></a></h1>

   <div class="user fr">
       <span>HI,<strong><?php echo $_SESSION['u'];?></strong></span>
       <a href="login.php?loginout">退出</a>
   </div>

</div>